Zussie's Ear Training
ずっしーの音楽教室
Functional Ear Trainer
Kaizen9 Apps
Complete Ear Trainer
Binary Guilt Software
Perfect Ear: Music & Rhythm
Crazy Ootka Software AB
Complete Music Reading Trainer
The Ear Gym - Ear training
Francisco Pampulha
Complete Rhythm Trainer
MyEarTraining - Ear Training
myrApps s.r.o.
唱準音-音高監控器
Autumn Rock Software Development
調音器,節拍器
Soundcorset Tuner